package com.atguigu.gulimall.member.interceptor;

import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.common.vo.MemberRespVo;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 用户登录拦截器
 *
 * @author xiaoping
 * @create 2020/7/3 18:43
 * @since 1.0.0
 */
@Component
public class LoginUserInterceptor implements HandlerInterceptor {

    /**
     * 创建共享用户
     */
    public static ThreadLocal<MemberRespVo> loginUser = new ThreadLocal();

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        /*
          放行指定请求
         */
        String uri = request.getRequestURI();
        boolean match = new AntPathMatcher().match("/member/**", uri);
        if (match){
            return true;
        }


        /*
          过滤请求是否登录
         */
        MemberRespVo attribute = (MemberRespVo) request.getSession().getAttribute(AuthServerConstant.LOGIN_USER);
        if (attribute != null){
            //存入共享用户信息
            loginUser.set(attribute);
            return true;
        }else {
            //没登录就去登录
            request.getSession().setAttribute("msg", "请先进行登录!");
            response.sendRedirect("http://auth.gulimall.com/login.html");
            return false;
        }
    }
}
